Exmouth answered your question Sue - they didn't live in Australia 
Sorry Sue

1931-32 ER - all possibilities
William James THOMAS 15 Bent St Lithgow, laundryman
Mary Jane THOMAS 15 Bent St Lithgow, home duties
William James THOMAS, Violet Hill, Tea Gardens, dairyman
William James THOMAS, 80 Garfield St, Five Dock. shop assistant
William James THOMAS, Inverell, labourer
William James THOMAS Henry St, Werris Creek fireman
William James THOMAS, Borah Creek, Bingara, labourer
William James THOMAS, 76 Thomson St, Darlinghurst West, mechanic
William James THOMAS, Murray St, Abernethy, labourer
William James THOMAS, 64 Parramatta Rd, Summer Hill, telephone sup
And the Rockdale couple
Ros
adding : I suspect that they didn't enrol to vote Exmouth
